Description

Fernox F4 Leak Sealer Express 265Ml 58232

Fernox Leak Sealer F4 Express is used in domestic heating systems for sealing small inaccessible leaks. Leak Sealer F4 Express works best in warm/hot circulating water. Once dispersed evenly in the system water it is effective within 1 - 24 hours. The sealing efficiency of Leak Sealer F4 Express has been formulated to prevent blockage of safety devices, pumps, etc. Quick and convenient – doses in 30 seconds. Simple to use with no mess. Added via a radiator adapter or filling loop supplied. Non-toxic, environmentally friendly formulation. 100% recyclable can. Seeks out and seals most weeps and leaks. Saves time and money on draining down and repairing. Does not cause blockages of pumps, air vents, etc. Compatible with all Fernox Protectors.